STAble and low cost Manufactured bipolar plates for PEM Fuel Cells
The main objective of STAMPEM is to develop durable coating materials for metal based bipolar plates which can be mass produced for less than 2.5 € /kW of rated stack power at a mass production volumes of 500 000 pieces annually. Properties after the extrapolated 10 000 hours from AST single cell testing shall still be within the AIP specifications. The main parameters are contact resistance
(< 25 mohm cm2) and corrosion resistance (< 10 μA/cm2).
Cost and durability still represent significant obstacles to full commercialization of PEM fuel cell technology for automotive applications. STAMPEM will contribute toward reaching the goals of reducing the cost and enhancing the stability of the bipolar plates which constitute one of the key components of the PEM fuel cell stack. The STAMPEM project results may also have significant positive implications for other application areas as well, such as low cost bipolar plates which are inherently needed for all PEM fuel cell applications.
One key component in the PEMFC which contributes significantly to cost, weight and volume of the stacks and still needs to be improved in order to ensure that the cell lifetime is the BiPolar Plate (BPP). Metal based bipolar plates are very attractive, but a protective coating is needed to avoid corrosion and keep the interfacial contact resistance low. The STAMPEM-consortium has been established acknowledging that further development of BPPs require Europe’s best available resources, with respect to both human competence and infrastructure (laboratories). The objective in STAMPEM is to develop a new generation of coating for low-cost metallic bipolar plates for PEMFCs, with robust and durable properties for assembly and manufacturing and also able to display high performance after more than 10000 hours of operation.
The concept of STAMPEM is to combine world leading industrial actors capable of volume manufacturing with research institutions that have the required generic competence capable of providing breakthrough solutions with respect to a new generation coating for low cost metallic BPPs. By involving an end user of the BPPs developed in the STAMPEM project, the results will be thoroughly verified under realistic operating conditions in a PEMFC stack. The initial phase of the project will be used to establish a testing protocol for BPP materials. In order to screen the material’s basic corrosion, experiments will be performed with contact resistance measurements before and after the testing. Promising materials will further be tested in fuel cells and even further in stacks. The BPP materials go through a real mass production cycle and the real production cost will also be analysed. Possible detrimental contamination of the membrane will also carefully be investigated. The most promising materials will, in the end, be fully integrated into a system which also may be produced in series to provide the building blocks in other fuel cell vehicles.